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Enable HWASan for multiple modules in one place(Make)

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Environment variables HWASAN_INCLUDE_PATHS and
PRODUCT_HWASAN_INCLUDE_PATHS can be used to enable HWASan for multiple
modules, by just adding the module directory to the env variable.

Bug: b/271948407
Test: Set specific module directory to above env variable and check the
assembly codes of output elf files after building, finding hwasan
related symbols inside.

Change-Id: I4493cb627fb564ee317eb95bd24ec020d42ae28c
This commit is contained in:
Hang Lu
2022-08-29 14:42:34 +08:00
parent 0ab788ee83
commit e235ded733
3 changed files with 15 additions and 0 deletions
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11
core/config_sanitizers.mk
View File

@@ -155,6 +155,17 @@ ifeq ($(filter memtag_heap, $(my_sanitize)),)
endif
endif
# Enable HWASan in included paths.
ifeq ($(filter hwaddress, $(my_sanitize)),)
combined_include_paths := $(HWASAN_INCLUDE_PATHS) \
$(PRODUCT_HWASAN_INCLUDE_PATHS)
ifneq ($(strip $(foreach dir,$(subst $(comma),$(space),$(combined_include_paths)),\
$(filter $(dir)%,$(LOCAL_PATH)))),)
my_sanitize := hwaddress $(my_sanitize)
endif
endif
# If CFI is disabled globally, remove it from my_sanitize.
ifeq ($(strip $(ENABLE_CFI)),false)
my_sanitize := $(filter-out cfi,$(my_sanitize))

3
core/product.mk
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@@ -239,6 +239,9 @@ _product_list_vars += PRODUCT_CFI_INCLUDE_PATHS
# Whether any paths are excluded from sanitization when SANITIZE_TARGET=cfi
_product_list_vars += PRODUCT_CFI_EXCLUDE_PATHS
# Whether any paths should have HWASan enabled for components
_product_list_vars += PRODUCT_HWASAN_INCLUDE_PATHS
# Whether the Scudo hardened allocator is disabled platform-wide
_product_single_value_vars += PRODUCT_DISABLE_SCUDO

1
core/soong_config.mk
View File

@@ -110,6 +110,7 @@ $(call add_json_bool, EnableCFI, $(call invert_bool,$(fi
$(call add_json_list, CFIExcludePaths, $(CFI_EXCLUDE_PATHS) $(PRODUCT_CFI_EXCLUDE_PATHS))
$(call add_json_list, CFIIncludePaths, $(CFI_INCLUDE_PATHS) $(PRODUCT_CFI_INCLUDE_PATHS))
$(call add_json_list, IntegerOverflowExcludePaths, $(INTEGER_OVERFLOW_EXCLUDE_PATHS) $(PRODUCT_INTEGER_OVERFLOW_EXCLUDE_PATHS))
$(call add_json_list, HWASanIncludePaths, $(HWASAN_INCLUDE_PATHS) $(PRODUCT_HWASAN_INCLUDE_PATHS))
$(call add_json_list, MemtagHeapExcludePaths, $(MEMTAG_HEAP_EXCLUDE_PATHS) $(PRODUCT_MEMTAG_HEAP_EXCLUDE_PATHS))
$(call add_json_list, MemtagHeapAsyncIncludePaths, $(MEMTAG_HEAP_ASYNC_INCLUDE_PATHS) $(PRODUCT_MEMTAG_HEAP_ASYNC_INCLUDE_PATHS))